3491278848 has 260 divisors, whose sum is σ = 11060798760. Its totient is φ = 1093533696.

The previous prime is 3491278753. The next prime is 3491278871. The reversal of 3491278848 is 8488721943.

It is a happy number.

3491278848 is a `hidden beast` number, since 3 + 491 + 2 + 78 + 84 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (3096576) is a multiple of the sum of its prime factors (672).

It is a junction number, because it is equal to n+sod(n) for n = 3491278794 and 3491278803.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5639883 + ... + 5640501.

Almost surely, 2^3491278848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3491278848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5530399380).

3491278848 is an abundant number, since it is smaller than the sum of its proper divisors (7569519912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3491278848 is an equidigital number, since it uses as much as digits as its factorization.

3491278848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672 (or 641 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 3491278848 is about 59087.0446713998. The cubic root of 3491278848 is about 1517.0323630559.

The spelling of 3491278848 in words is "three billion, four hundred ninety-one million, two hundred seventy-eight thousand, eight hundred forty-eight".